
body{
    margin: auto;
    padding: 0;
    width: 100%;
    font-size: 16px;
    font-family:'Microsoft YaHei','Hiragino Sans GB',Helvetica,Arial,'Lucida Grande',sans-serif;
}
li{
    list-style-type: none;
}

.fl{
    float:left;
}
.fr{
    float: right;
}